The scoring method used here seems to be a bit removed from making any sense at a glance.
It says “Total Score”, which implies “Addition of Numbers”.
But the first tile, MD, has sub scores of 42+30+19 = Way more than the reported total of “50.55”.
So, maybe 50.55 is an average? Of course not, because the average can’t be more than the largest sub score contributing to the average.
This makes no sense at all.
I give up.